1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ab4adaebd6cd2e8c214f6f97b5ba1d16c828efe38210cf82fbbecb79746339. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58484c8d-b288-412f-a2b5-50bee8c34e75.json and https://artists.proofprofile.net/proofs/artist/58484c8d-b288-412f-a2b5-50bee8c34e75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Streamable Video Game Music (Volume III)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a76a07817295b3cbfe8c9ebbc7ff1d1dd24f8ab9d3d791bfec2c9bdad1d72. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:18:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2344753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04edfe3241f085e6a54b0e22031e5a45dd8dbc7372db4410f02d130822cffeb5. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:43:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2344767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87adf4b4da08277d228d6b430a9572e68ad626b9b28aeda6ea3b059c361b3f24. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2344779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7910d1c9716d328d2e91f979ab3fb16a74a11080ff34a9787568d97683c94e. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2301861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f282ad2dd4d1491e37e7d86f1e6a573807d0ce8ebf5fe865160711977fbe212. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2301869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b93906fe7925e56cced245aec9802068ab73ce2c7bbfd390ab4dc8cf582b59. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2301886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f5b6a274887588705ec9efc10a03912a5e6cdb7e74fed44916fc5f300a7c84. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2301888.
Streamable Video Game Music (Volume VII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bf8f190119f2293184ff56c1eae56beaf19fc24cea974962fc2df3049d72f6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc93ee276803325c580fe9fdeee3446e5ffb51718f9a7e5709bd91ae2a6c3dd. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0671ba638b762a3e72d6cf737d3f118ddf237cf0c6a75deecfc339197a6062e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e96566f34cb212766891d4b845bc06ac4231ee22206536c5c51c9ab51e4bc16. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9051cf417aa9e45bbdb3b6a9ccf455f6ef68143d8a8a78877820e09e26c765a9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d936540cb0e5330434d4a127b346594a9213769fc2b34594480a9d7f9dfa8b2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccaba5b3b7fc62b072fa17aa00b0f1ad58732361b1a2fcaca054ef39c47396d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420d3fb9b0a1b03146d8dcd3a52e86ed35d831fe16344b2d37180fbc5938c6eb. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28cde9acf2d45991deaf29cf60799b450484fcfebef972f741936fdd55c2aad. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7477d869e20ce1bf57304b9ba3da0a447adfa0a6ca913b0ba7cc4df2d5e93559. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eb80025cf34142b4189340049f24369ce0b3f433459c8faee598f795a7ba4f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fca6f10913d60c9890e56867dc33373479f3b2f14cdfe3c87a3147e63bb4b39. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973063f108c79d5dc3c991cd3ae7e8e81149dd644d99696f05e078094dd23f42. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe069c2b5272660bbf0e9623c9f6a85cba8de77e0dcdb98de6b6798f342e10d5e. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:56:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021a44ec1e6c112b6b417034ca1d2fff2affd399dccf857b28ae7717b41a3380. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:51:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71b5ce8674465b4459016aa810b46921daf785bc491d3897406b580e5aaca59. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581f3fe8d3bb23bae8053674460f0950121be3fa9cd96cc4b8d2b96f950eedcd. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:16:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66038d1b5c0b8fd0ec0272d5c03d3864c5376125a6195aa667d3d3cf18efb141. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccd2c7e03d575aa1cea4f632fa476df2453e77f84d305bd6a3724857688e998. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82568623.